Stems

The Madone is built as a seamlessly integrated machine designed to do one thing: go fast. Trek's Madone Integrated Bar/Stem is an important part of that integration. Available in a variety or widths and reaches so you can dial in your superbike specifically for you.
- Compatible with model year 2016/17 Madone
- Variable radius, compact flare (VR-CF) shape offers wrist clearance in the drops
- 100% OCLV carbon fiber construction
- Seamless accessory integration with Blendr
- Blendr accessory bases and mounts sold separately

Bontrager's Race XXX Carbon Road Stem is strong enough to handle the torque from 1,800-watt road sprints and the punishment of XC races. With a 4-bolt faceplate and angled steer clamp, the XXX stem distributes clamping loads evenly so its safe on ultra-lightweight carbon bars and steerers. This stem's feathery weight ensures your bike is that much lighter when the road tilts skyward and its carbon construction cuts down on vibration so you never get numb hands.

Trim some weight and add some style to your ride with Bontrager's RXL Stem. Made from forged 7050-T6 aluminum, this stem is exceptionally light and strong. In fact, it's equally suited to the sharp impacts of mountain biking as it is to the long-mile rigors of the road. And, its shot-peened finish offers exceptional strength while the 4-bolt faceplate makes installation easy, and the opposed-bolt steerer clamp is carbon friendly.

Bontrager's RXL OS Stem lightens your ride and steers with precision. Made from cold-forged, machined, 7050-T6 aluminum, this stem is exceptionally light and strong. In fact, it's equally suited to the sharp impacts of mountain biking as it is to the long-mile rigors of the road. And its shot-peened finish offers exceptional strength while the 4-bolt faceplate makes installation easy, and the opposed-bolt steerer clamp is super safe and secure.

Run your favorite 31.8mm clamping diameter handlebar on a bike with Knock Block with the Rhythm Comp 31.8. It adds Knock Block compatibility to a durable stem with multiple lengths to let you fine-tune the fit to your ride.
Get 31.8mm handlebar compatibility with your Knock Block system;Also compatible with standard headsets and spacers;Knock Block system protects frame from impacts by fork and handlebars by eliminating over-rotation of bars;Available in a wide range of sizes for today's mountain rider;See Service Parts for other Knock Block parts;

Downhillers rejoice! Bontrager has a stem for you. Maintain confident control on screaming runs down the gnarliest lines with the durable and strong Rhythm Pro Direct Mount Stem.
Made from strong and lightweight 6061 aluminum, this stem features a hefty 4-bolt attachment to the fork, and a 4-bolt, dual-band clamp for a confident interface with the bars.
Key features:
- Constructed of 7050 alloy
- 4-bolt direct mount for dual crown forks
- 4-bolt dual band clamp securely holds handlebar
- Uses M6 corrosion-resistant steel bolts with 8Nm torque spec
- Safe for use with alloy or carbon handlebars

Oversized diameter 35 mm stem accessible to all mountain riders.
Oversized and in control
Equip your whip with this 35mm Line stem and give yourself the oversized advantage. Forged from 6061-T6 3D aluminum, this 0-degree stem provides the increased strength of the latest mountain-specific bar diameter.
Product details
- Oversized 35mm clamp diameter provides a new level of strength and weight savings
- Forged from 6061-T6 3D aluminum
- Laser etched calibration marks make dialing in the perfect angle simple and repeatable
- Compatible with both Knock Block and standard headsets and spacers
- Knock Block system protects the frame from impacts by fork and handlebars by eliminating over-rotation of bars
- Available in a wide range of sizes for today's mountain rider
- Safe for carbon bars

Dimension 31.8 Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp.
- 31.8mm can be used with 26.0 bars with additional shim (SM5317)
- Dimension stems are not intended for use with carbon handlebars or carbon steer tubes
- Weight: 130g-180g

Use Avenir's Fit Stem w/Handlebar Shims to find the perfect position on any bike. It's made from stiff 3-D-forged aluminum with a 4-bolt faceplate. And, the included shims let you run 26.0mm bars in the 31.8mm clamp.

Bontrager's SSR Stem is made of forged 6000 aluminum for awesome strength. The 2-bolt faceplate makes it super easy to install and distributes the clamping force on your bars. Plus the opposing bolts on the steerer clamp ensure safe and secure tightening. This stem can be flipped for a positive or negative rise.